[Pond]

Hello.
My new F33 440i comes with 19" 704M wheels but I would like to change them to aftermarket 20" items (probably 666m replicas).
I have sorted the widths, tyre sizes, offsets, rolling radii etc, thanks to 'willtheyfit.com' but have a few questions I would appreciate advice on:
My car has adaptive dampers and VSS, so not sure if there would be any issues with fault codes for these with bigger wheels?
Also, will I need different TPMS sensors, or will these need 'coding' to the larger diameter?
Any potential issues with the ABS sensors, etc?
Thanks in advance

[Abzynthe]

I have an F36 with VSS and adaptive. I upgraded to 20" and zero issues in 4 years

If you use your old tpms or new ones for BMW they should sync up fine.

[SteveChester]

Firstly 666m wheels are for M cars!

Secondly swapping OEM wheels for a set of cheap replicas probably made badly in China is crazy!

[Pond]

Originally Posted by SteveChester

Firstly 666m wheels are for M cars!

Secondly swapping OEM wheels for a set of cheap replicas probably made badly in China is crazy!

763M wheels were only fitted to M3 CSLs; still many have them.

Most OEM wheels are made in Poland or Hungary, or anywhere that's cheap. They are not honed from a solid piece of English Oak.

Many, many BMW, Merc, VW, you name it, wheels crack or warp. Don't see the difference TBH. I had an OEM Alpina 19" classic which was oblong! Cost to replace; £900!

[Armaan]

Originally Posted by Pond

763M wheels were only fitted to M3 CSLs; still many have them.

Most OEM wheels are made in Poland or Hungary, or anywhere that's cheap. They are not honed from a solid piece of English Oak.

Many, many BMW, Merc, VW, you name it, wheels crack or warp. Don't see the difference TBH. I had an OEM Alpina 19" classic which was oblong! Cost to replace; £900!

I'd say without doubt that OEM are significantly less prone to cracks and buckles than most replicas. Can be made anywhere, but are made to BMW spec.

Chinese replicas are particularly soft and don't last well on UK roads, simply not the same construction from my knowledge.

Armaan

[Lorcan]

Originally Posted by Pond

Most OEM wheels are made in Poland or Hungary, or anywhere that's cheap. They are not honed from a solid piece of English Oak.

Correct, we don't make wheels out of wood any more

The differences between OEM, reputable brands and cheap aftermarket wheels are certification and homologation.

AC Schnitzer use TÜV technical services to issue certification, meaning the items meets specific quality standards for manufacture, and homologation, meaning the wheels have sufficient load rating and other characteristics that make it suitable for a specific vehicle. Sample wheels are tested to destruction. Most Chinese aftermarket wheels are not tested, and have no load rating at all. In the UK, it's legal to put untested wheels on your 2450kg Tesla. I can't recommend it though.

All BMW, VW etc wheels, no matter where they are manufactured, will also have been tested or they couldn't be used on German roads.

[coonz]

Originally Posted by Lorcan

Correct, we don't make wheels out of wood any more

The differences between OEM, reputable brands and cheap aftermarket wheels are certification and homologation.

AC Schnitzer use TÜV technical services to issue certification, meaning the items meets specific quality standards for manufacture, and homologation, meaning the wheels have sufficient load rating and other characteristics that make it suitable for a specific vehicle. Sample wheels are tested to destruction. Most Chinese aftermarket wheels are not tested, and have no load rating at all. In the UK, it's legal to put untested wheels on your 2450kg Tesla. I can't recommend it though.

All BMW, VW etc wheels, no matter where they are manufactured, will also have been tested or they couldn't be used on German roads.

IIRC Ronal make many of the OEM wheels for the German manufacturers.

[Lorcan]

Originally Posted by coonz

IIRC Ronal make many of the OEM wheels for the German manufacturers.

AC Schnitzer have used Ronal, but also BBS, OZ and PGM.

[Ennoch]

Originally Posted by Pond

Most OEM wheels are made in Poland or Hungary, or anywhere that's cheap. They are not honed from a solid piece of English Oak.

Or even in Ukraine if you're VW...

[coonz]

Originally Posted by Lorcan

AC Schnitzer have used Ronal, but also BBS, OZ and PGM.

Is it still £1 off all ACS wheels?

[Pond]

Originally Posted by coonz

IIRC Ronal make many of the OEM wheels for the German manufacturers.

The 326Ms on my E89 are made by Ronal in Poland and they are (AFAIK) the worst OEM wheels for cracking. There are literally thousands of them. So much for 'rigorous testing' by the manufacturers. Golf R wheels buckle, Merc 19" wheels crack. Ford 19" (ST Focus) wheels buckle and crack......and so on.

Every non-OEM wheel I've seen advertised is certificated for load to at least 690kg. That's more than enough for an 1800kg car.

[Lorcan]

Originally Posted by coonz

Is it still £1 off all ACS wheels?

For everyone else, yes.

[ALBEE]

Why don't you try and buy 'original' used BMW wheels (even if they need refurb, they will be a better option than Chinese cheapos!!!)

[MattOz]

All I will say, with regard to tyre sizes, is go 245/30/20 and 265/30/20 if you can. A 225 front and 255 rear look under tyred.